Smoke-remover for ordnance.



r J. KRONE & J. BECKER.

SMOKE RBMOVER FOR ORDNANOE.

APPLICATION FILED MAY 12, 1908.

932,032. Patented Aug.24,1909. I

UNTTE TATS AT FFTQE.

.TOHANNES KRONE AND JULIUS enemas,- or ESSEN-0N-THE-RUHR, GERMANY, ASSIGNOES 'ro ramp. more AKTIENGESELLSGHAFT, or nssnn on-rnn-nnna, GERMANY.

SMOKE-REMOVER FOR OBDNANGE.

Specification of Letters Patent. Patentad Aug. 24, 1909. Application filed May 12, 1908. Serial No. 432,534.

To all whom it may concern: of the armored turret B and out into the Be it known that we, JorrANNns KRONE, 3 136 1 ailresiding at Essen-on-the-Ruhr, and JULIUS The gun arr l A has a cam breech mech- Bnoxnn, residing at Essen-on-the-Ruhr, Geri anism G, G, the breech door G of which is many, both subjects of the E r r f G rbounded on the side farthest from its pivot many, have invented a certain new and usep 9 by a Cylindrical face 9 curved to the an improvement in Smoke Removers for r a r le (s. part u1arly Fig- 2), and Ordnance, of which th followi i a ithe axis of whlch, when the breech mechanfication. ism is closed, coincides approximately with Thi i ti l t t th t t f the longitudinal axis of the gun barrel. pamiiis f igemoving powder gases f To the breech end a of the gun barrel is gun barrels, in which a suction pipe i tattached, on the side lylng farthest. from the tached to the breech end of the gun barrel. P 1 1) g of the breech door, a cap-shaped Hitherto this kind of apparatus, which is Smoke p whleh partially O e S ver described for exa l i th ifi ti f the front and partlally also the outer surface Patent No. 86%152, ha ly b d on 1, of the breech end a 1n the manner shown in guns in which the breech opening passes i e g e partlcularly F1gs.2 and ,5). through the outer surface of the breech end i 111 the pa Of h m e tr p 04 whlch of the gun barrel, as is the case in wedg covers over the front of the breech end, is breech mechanisms for ex l i provided a recess a (see Fig. 2) for the part Now the object f th present i ti i of the breech door G bounded by the surface to provide an apparatus of the type above 9 the shape of the said recess correspondmentioned, which shall be capable of being 1 g to h f h Surf e 9 used for that type of gun, in which the T p f h Smok trap a bounded by breech opening is situated at the front of the I h re s a has an opening a (see Figs. 5 breech end of the gun barrel, as is the case i and 6), ich lies opposite the Surface 9 of in screw and cam breech mechanisms for exl h r c 1 Wh n he la er is los dample. The opening a forms the inlet opening for In the drawing: Figure 1 shows a side the powder gases to be removed. In the side view of a constructional form of the appaboundary wall of the part of the smoke trap ratus constituting the subject matter of the which cov rs over the outer surface of the invention, together with those parts of a barbreech end, is a rectangularly shaped openrel recoil gun and gun platform with which ing a which forms the outlet opening for the invention is connected. Furthermore, the powder gases. The part of the wall of and on a larger scale Fig. 2 is a Section on the smoke trap 04 containing the opening cf, the line 22 of Fig. 1, seen from the right. is provided with a flange a, which is of rec Fig. 3 is a section on the line 3-3 of Fig. 2, tangular form exactly like the opening a, seen from the left, Fig. 4': is a side view, corand the front of which forms a vertical plane responding to Fig. 8, of the breech end of to the axis of the trunnions c. the gun barrel. Fig.- 5 is a section on the i The suction pipe E is widened into boxline 55 of Fig. 3, seen from above, and shape at its free end, and provided with a Fig. 6 is a section on the line 66 of Fig. 2, front wall 6 having a rectangular opening a and the outer boundary face of which forms a vertical plane at right angles to the axis of the trunnions c. The arrangement i is so contrived,that the wall 6 stands opposite and quite a small distance away from the flange (1 of the smoke trap a when the gun barrel, as shown in the drawing, is in the loading position. The openings 6 of the suction pipe E and a of the smoke trap a then lie directly opposite each other.

The opening 6 is of the same breadth as the opening a its height however is smaller seen from the left.

The gun barrel A of the barrel recoil gunwhich is mounted in an armored turret-is movably mounted in the cradle C in the usual way, which latter is pivotally mounted, by means of the trunnions c, in the gun carriage D.

Alongside the gun carriage D is placed a fan E, to drive which an electric motor F is employed. To the fan E is attached a suction pipe E and a delivery pipe E The said delivery pipe F. leads through the roof than the: lieight of the opening a. In conse quence hereof, the powder moved can pass over out of a into the suction pipe E vation of the gun barrel, and within certain limits dependent upon the differences of height of the openings a and Any elevation of the gun barrel lying between the above mentioned limits, can be regarded as the loading position.

H fWhile shooting is going on, the fan E is continually in operation. After the gun has been fired with the barrel thereof elevated to correspondto the distance away of the target, the barrel recoils and then returns to the firing position again. At this stage the gun the loading position,

barrel is brought into in; Which the opening a of the smoke trap a stands opposite the opening 6 of the suction pipe. if now the breech mechanism G, G be opened, by swinging the breech door aside about the axis of the pin 9 after previously unlocking the breech piece G, the powder gases remaining behind in the gun barrel will be drawn into the opening a of the smoke trap, pass through the same, and proceed by the path a 6 into the suction pipe E of the fan E, which forces them into the delivery pipe Ef; from thedelivery pipeE the powder gases pass above the roof of the armpred turret, into the open air, where they are no longer able to trouble the crew of the gun;

Having thus described the invention, what is claimed and desired to be secured by Letters atent is: i

1. In a sn ol'reremoverfor ordnance, the combination with a gun having an end opening breech closure; of a smoke collector overlapping a portion of the end surface of the gun barrel, said collector being provided with an intake adjacent to the end opening in the breech; and means for creating suction in said smoke collector.

V 2. The combination with a gun provided with an end openingbreech closure; of a smoke collector overlapping a portion of the end surface of the gun barrel, said collector being provided with an intake opening adjacent to the end opening of said barrel and constructed to partially encircle said breech opening.

3; The combination with a gun having an the smoke .trap at any desired eleend opening breech closure, of a smoke collector overlapping a portion of the end surface of the gun barrel and also a portion of the jacket surface thereof and provided with an intake adjacent to the end opening of the gun breech and provided with an outlet opening for said powder gases in that porgases to be retion which overlaps the'ja'cket surface of the gun barrel, and means for causing a suction through said smoke collector.

4-. The combination with a gun having an end opening breech closure, of a smoke collector overlapping a portion of the end surface of the gun barrel and provided with an intake adjacent to the end opening of the breech and with an outlet opening; and a suction conduit in close smoke collector, said conduit having an intake in close proximity to the outlet opening of the smoke collector, and means for causing a suction through said suction conduit.

5. The combination with a gun having an end opening breech closure; of the hinge by which the breech closure is supported; a smoke collector overlapping a portion of the end surface of the gun barrel and surrounding that end of the hinge remote from its pintle, said collect-or being provided with an intake adjacent to the end opening of the breech; and means for inducing suction in the smoke collector.

The combination with a gun having an end opening breech closure; of the breech closure hinge provided with a cylindrical end remote from its pintle; a smoke collector having an open end conforming to the cylindrical end of the hinge said open end of the collector being arranged adjacent to the end opening of the breech; and means for inducing a suction in said smoke collector.

7. In an apparatus of the character de-- scribed, the combination of the end opening breech block, the hinge supporting the same, said hinge being provided with a cylindrical cnd remote from its pintle, the smoke collector overlapping a portion of the end surface and jacket surface of the gun barrel, and provided with an open end in close conformation to the cylindrical end of the hinge when the breech is closed, said opening being arranged adjacent to the end opening of the breech; and an outlet in the outer wall of that portion of said collector which overlaps the jacket surface; a suction conduit having an opening adjacent to said outlet of the smoke collector, and means for inducing a suction in the suction conduit.

The foregoing specification signed at Dusseldorf, German ,Vthis 4th day of ,Aprll,

JOHANNES KRONE.

JULIUS BECKER. In presence of- ETER LIEBER,

VVILHELM FLAscHE.

- proximity to the 

